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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
At that time
Grammar usage guide and real-world examplesUSAGE SUMMARY
"At that time" is a correct and usable phrase in written English.
You can use it to refer to a specific moment in the past. For example: "At that time, I could never have imagined where I would be now."
✓ Grammatically correct
News & Media
Encyclopedias
Science
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
60 human-written examples
At that time Capt.
Encyclopedias
At that time the Dept.
News & Media
"At that time we had no freedom.
News & Media
At that time I had done plays.
News & Media
At that time of year there is.
News & Media
At that time we cheered our "success".
News & Media
At that time Mussolini was in Italy.
Encyclopedias
At that time it was wild country.
News & Media
(At that time, they had three).
News & Media
"At that time, he was the leader.
News & Media
At that time, shots were fired.
News & Media
Expert writing Tips
Best practice
Use "At that time" to clearly indicate a specific moment or period in the past, ensuring your audience understands the temporal context of your narrative or explanation.
Common error
Avoid using "At that time" without a clear reference point in your writing. Ensure the context makes it obvious which moment or period you're referring to, or else specify the date or event it relates to.
Source & Trust
84%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "At that time" functions as an adverbial phrase, modifying a verb or clause to specify when an action occurred or a state existed. Ludwig provides numerous examples demonstrating its temporal function.
Frequent in
News & Media
42%
Encyclopedias
14%
Science
12%
Less common in
Wiki
8%
Formal & Business
0%
Social Media
0%
Ludwig's WRAP-UP
In summary, "At that time" is a versatile and grammatically sound phrase used to specify a particular moment or period in the past. According to Ludwig, this phrase is considered correct and usable in written English. It's prevalent in news, encyclopedias, and scientific sources, indicating its suitability for both formal and informal contexts. When using "At that time", ensure that the temporal reference is clear and unambiguous. While phrases like "back then" or "in those days" can serve as alternatives, they may carry slightly different connotations regarding the specificity and duration of the time being referenced. By following these guidelines, you can confidently incorporate "At that time" into your writing.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
Back then
Refers to a less specific, more general time in the past.
In those days
Implies a period of time, rather than a single moment.
During that period
Emphasizes a span of time, suitable when describing events that unfolded over an interval.
At that moment
Highlights a specific, often critical, point in time.
On that occasion
Refers to a specific event or instance.
At that juncture
Indicates a critical point in time, often related to decision-making or change.
By then
Indicates a point in time before something else happened.
In retrospect
Implies looking back on a past event with current knowledge.
Previously
Simply indicates something that occurred before the current point in the narrative.
Earlier
Refers to a time before the present or before a specific point in time.
FAQs
How can I use "at that time" in a sentence?
Use "at that time" to specify a particular moment or period in the past. For example, "At that time, I lived in New York" clarifies when you resided in New York.
What are some alternatives to "at that time"?
Alternatives include phrases like "back then", "in those days", or "at that moment", depending on the specific nuance you want to convey.
Is "at that time" formal or informal?
"At that time" is generally considered neutral and can be used in both formal and informal contexts. However, in very formal writing, you might opt for a more precise phrase.
How does "at that time" differ from "at this time"?
"At that time" refers to a point in the past, while "at this time" refers to the present. Using the correct phrase ensures clarity regarding when the action or state occurred.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
84%
Authority and reliability
4.6/5
Expert rating
Real-world application tested